What is a clean room?
A clean room refers to a room where the concentration of suspended particles in the air is controlled. Its construction and use should reduce the particles induced, generated, and retained indoors. Other indoor parameters such as temperature, humidity, pressure, etc. are controlled according to requirements to ensure the cleanliness and compliance of the environment.
Correspondence between different cleanliness standards
ISO 4 corresponds to class 10
ISO 5 corresponds to class 100
ISO 6 corresponds to class 1000
ISO 7 corresponds to class 10000
ISO 8 corresponds to class 100000
Class A corresponds to ISO 5 or higher cleanliness
Class B corresponds to ISO 6 or higher cleanliness
Class C corresponds to ISO 7 or higher cleanliness
Class D corresponds to ISO 8 or higher cleanliness
Typical industry cleanliness level requirements
Optoelectronic clean room
The optoelectronic clean room has extremely strict requirements for cleanliness because tiny dust, particles, or chemical pollutants can have a serious impact on product performance, yield, and reliability. Usually requires a cleanliness level of ISO 6 or higher.
Biopharmaceutical clean room
Biopharmaceuticals: The biopharmaceutical clean room typically requires a cleanliness level of ISO 5 or higher to prevent microbial and other contaminants from contaminating drugs or experimental samples.
Semiconductor clean room
Semiconductor clean room is one of the industries with the strictest requirements for cleanliness, and clean rooms are an important part of its manufacturing process, directly affecting product yield because tiny dust particles may damage microcircuits. Usually, it requires a cleanliness level of ISO 3 or higher.
New energy clean room
The requirements for cleanliness in new energy industry (such as lithium batteries, hydrogen energy, photovoltaics, etc.) vary significantly depending on the specific fields and process stages. Usually, a cleanliness level of ISO 8 or higher is required.
Post time: Sep-16-2025